Structure-Activity Studies on Nematicidal Activity of Dialkyl Carbamates and Thiocarbamates
Abstract
In laboratory tests, 129 dialkyl carbamates of types ROC(O)NHR', RSC(O)NHR', and ROC(S)NHR' were tested in a screening bioassay against Panagrellus redivivus. The 10 most active were lethal at concentrations from 5 ppm down to ca. 1 ppm. Eight of these (the only ones active below 2.5 ppm) were thiolcarbamates (RSC(O)NHR'). Decyl N-methyhhiolcarbamate was also lethal to Meloidogyne incognita at approximately 1 ppm in direct contact tests. Key words: alkyl, carbamate, dialkyl, Meloidogyne incognita, nematicide, Panagrellus redivivus, structure-activity, thiocarbamate.Downloads
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